Trial Outcomes & Findings for Effect of Pregabalin on Post Operative Pain in Abdominal Hysterectomy Under Spinal Anesthesia With Intrathecal Morphine (NCT NCT02285010)

NCT ID: NCT02285010

Last Updated: 2019-03-15

Results Overview

Cumulative morphine consumption in the first 24 hours is recorded from IV PCA

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

125 participants

Primary outcome timeframe

6, 12, and 24 hours after operation

Results posted on

2019-03-15

Participant Flow

142 patients on gynecology unit during December 2014 - January 2016 were assessed for eligibility, 17 patient were not randomized due to didn't meet inclusion criteria (n=6), met exclusion criteria (n=4), declined to participate (n=7).

Participant milestones

Participant milestones
Measure
Placebo
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Overall Study
STARTED
63
62
Overall Study
COMPLETED
58
61
Overall Study
NOT COMPLETED
5
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Overall Study
not abdominal hysterectomy
2
0
Overall Study
Not spinal anesthesia
3
1

Baseline Characteristics

Effect of Pregabalin on Post Operative Pain in Abdominal Hysterectomy Under Spinal Anesthesia With Intrathecal Morphine

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=58 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=61 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Total
n=119 Participants
Total of all reporting groups
Age, Continuous
46.4 years
STANDARD_DEVIATION 6.1 • n=93 Participants
45.9 years
STANDARD_DEVIATION 5.3 • n=4 Participants
46.2 years
STANDARD_DEVIATION 5.7 • n=27 Participants
Sex: Female, Male
Female
58 Participants
n=93 Participants
61 Participants
n=4 Participants
119 Participants
n=27 Participants
Sex: Female, Male
Male
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
ASA physical status
I
35 Participants
n=93 Participants
27 Participants
n=4 Participants
62 Participants
n=27 Participants
ASA physical status
II
23 Participants
n=93 Participants
34 Participants
n=4 Participants
57 Participants
n=27 Participants

PRIMARY outcome

Timeframe: 6, 12, and 24 hours after operation

Population: Only 47 and 53 participants from placebo and pregabalin group, respectively, received IV-PCA morphine in the 1st 24 hours. The rest didn't require morphine consumption.

Cumulative morphine consumption in the first 24 hours is recorded from IV PCA

Outcome measures

Outcome measures
Measure
Placebo
n=47 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=53 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Post Operative Morphine Consumption
Morphine consumption 6 hr
1 mg
Interval 0.0 to 3.3
0 mg
Interval 0.0 to 2.0
Post Operative Morphine Consumption
Morphine consumption 12 hr
1 mg
Interval 0.0 to 4.0
1 mg
Interval 0.0 to 4.5
Post Operative Morphine Consumption
Morphine consumption 24 hr
4 mg
Interval 1.8 to 10.0
5 mg
Interval 2.0 to 11.0

SECONDARY outcome

Timeframe: 24 hours

Population: Only 47 and 53 participants from placebo and pregabalin group, respectively, received IV-PCA morphine in the 1st 24 hours. The rest didn't require morphine consumption.

Time to first analgesia is recorded from IV PCA.

Outcome measures

Outcome measures
Measure
Placebo
n=47 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=53 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Time to First Analgesia
4.6 hour
Interval 2.1 to 23.9
7.7 hour
Interval 2.5 to 23.7

SECONDARY outcome

Timeframe: 24 hours

Pain score is evaluated by nurses using Numerical Rating Scale (NRS) Minimum score 0 (no pain), Maximum score 10 (worst imaginable pain), lower scores mean a better outcome

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=61 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pain Scores on the Visual Analog Scale
At rest
2 score on a scale
Interval 0.0 to 4.0
2 score on a scale
Interval 0.0 to 3.0
Pain Scores on the Visual Analog Scale
At movement
4 score on a scale
Interval 2.0 to 6.0
4 score on a scale
Interval 3.0 to 5.0

SECONDARY outcome

Timeframe: 24 hours

Measure sedation score by evaluate and observe; measure pruritus, PONV, dizziness, visual disturbance using questionnaire

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=61 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Pruritus · No
7 Participants
17 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Pruritus · Mild
35 Participants
31 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Pruritus · Moderate
15 Participants
10 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Pruritus · Severe
1 Participants
3 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Nausea · No
18 Participants
23 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Nausea · Mild
24 Participants
21 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Nausea · Moderate
16 Participants
17 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Nausea · Severe
0 Participants
0 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Vomiting · No
31 Participants
38 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Vomiting · Mild
10 Participants
9 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Vomiting · Moderate
12 Participants
8 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Vomiting · Severe
5 Participants
6 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Dizziness · No
18 Participants
14 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Dizziness · Mild
31 Participants
39 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Dizziness · Moderate
9 Participants
7 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Dizziness · Severe
0 Participants
1 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Visual disturbance · No
51 Participants
45 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Visual disturbance · Mild
7 Participants
16 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Visual disturbance · Moderate
0 Participants
0 Participants
Numbers of Participants With Adverse Events as a Measure of Safety and Tolerability
Visual disturbance · Severe
0 Participants
0 Participants

SECONDARY outcome

Timeframe: 24 hours

Using four-point scale to evaluate patient satisfaction. Patients indicated if their satisfaction was Unsatisfied, Less Satisfied, Moderately Satisfied, or Good Satisfied.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo in capsule is prescribed to the patient 60 min prior to the surgery. placebo: Placebo in capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Pregabalin
n=61 Participants
Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Pregabalin: Pregabalin (150 mg) one capsule is prescribed to the patient 60 min prior to the surgery. Ringer Lactate Solution preload 15 mL/kg prior to surgery. Spinal anesthesia is done with 0.5% Heavy bupivacaine + morphine 0.2 mg total volume 3.0 - 3.6 mL. IV PCA Morphine is applied at PACU (bolus dose only 1 mg, lockout interval 5 min, 4 hr limit 35 mg). As soon as the patient is allowed to sip, paracetamol (500 mg) 1 tab PO every 6 hours is prescribed.
Number of Patients Evaluating Their Satisfaction
Unsatisfied
0 Participants
0 Participants
Number of Patients Evaluating Their Satisfaction
Less satisfied
1 Participants
5 Participants
Number of Patients Evaluating Their Satisfaction
Moderate satisfied
19 Participants
25 Participants
Number of Patients Evaluating Their Satisfaction
Good satisfied
38 Participants
31 Participants

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Pregabalin

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr.Taniga Kiatchai

Mahidol University

Phone: +66-2-419-7990

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place